At -20 F, How Much Time For Oil Flow At Startup?

[BobFout]

Originally Posted By: Quattro Pete
Originally Posted By: aquariuscsm
Especially if I`m leaving my house and immediately hitting the interstate. My car cruises around 3000rpm at 70mph,and I just don`t feel comfy doing that on a cold engine.

Why can't you just drive at 55-60mph for the first couple of minutes?


You'd get run over! Also, the revs aren't that much different in top gear between 60 and 70 MPH is it? (a few hundred RPM)

FWIW guys I go straight from the domicile to the interstate at 70 MPH. IMO, hard acceleration is worse than actual speed in this case, but there are times you gotta goose it to merge.

This is a big part of the reason I went from an API 5w40 to a Euro 0w40 for my VW.

 

[Quattro Pete]

Originally Posted By: BobFout
IMO, hard acceleration is worse than actual speed in this case,

I'd agree with that. I don't think cruising at 3k rpm on a not-fully warmed up engine is a big deal. Now, if you were redlining it, that would be another story...

Don't some BMWs have a variable redline on the tachometer? Anyone got one of those? What does it start at with a stone cold engine and how quickly does it move up? If I'm not mistaken, it starts at around 4k rpm or so, and goes up from there as the engine warms up...

Looks like 4.5k rpm is the lowest possible redline on the new M3, and that's a rather high performance engine...

http://blogs.insideline.com/roadtests/2009/07/2009-bmw-m3-variable-redline-indicator.html